AirForce Spin-Loc Standard Spare Tank 6.125 in

AirForce Spin-Loc Standard Spare Tank 6.125 in. The lack of need to remove the air tank for recharging has allowed us to also install a pressure guage. Now shooters can monitor how much air pressure (PSI) is left in the air cylinder during a shooting session. All this has been done without increasing the original length of the rifle. The Spin-Loc System is required to use this tank May be used with Compressed Air or Dry Nitrogen Gas only Package Contents: AirForce Spin-Loc Standard Spare Tank AirForce U2084: Spin-Loc Standard Spare Tank 6.125 in